School's a bloody nightmare says the tagline but let's get the official word from the headmaster in the new trailer for Slaughterhouse Rulez...Welcome to Slaughterhouse, an elite boarding school where boys and girls are groomed for power and greatness...and they’re about to meet their match. This ancient and ordered world is about to be shaken to its foundations - literally - when a controversial frack site on prized school woodland causes seismic tremors, a mysterious sinkhole, and an unspeakable horror to be unleashed. Soon a new pecking order will be established as the pupils and teachers alike become locked in a bloody battle for survival…

Directed by Crispian Mills (better known as Kula Shaker's front man) and starring Asa Butterfield, Finn Cole, Hermione Corfield, Michael Sheen with Nick Frost and Simon Pegg, prepare to get slaughtered when the film comes out on Halloween.